Alejandro Crespo

Alejandro Crespo

Member Since January 30, 2015
Open to Work

6,628

Total Points

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

Skills & Experience

  • Spoken Languages

    • English
    • Spanish
    • Italian
    • German

74 Achievements

  • Achievement

    Introduction to Methods

    Object-Oriented JavaScript (2015)

    Achieved

    Dec 7, 2015

    Introduction to Methods
  • Achievement

    Introducing jQuery Plugins

    Using jQuery Plugins

    Achieved

    Dec 1, 2015

    Introducing jQuery Plugins
  • Achievement

    Creating a Simple Drawing Application

    jQuery Basics (2014)

    Achieved

    Nov 28, 2015

    Creating a Simple Drawing Application
  • Achievement

    Creating a Password Confirmation Form

    jQuery Basics (2014)

    Achieved

    Nov 21, 2015

    Creating a Password Confirmation Form
  • Achievement

    Creating a Mobile Drop Down Menu

    jQuery Basics (2014)

    Achieved

    Nov 9, 2015

    Creating a Mobile Drop Down Menu
  • Achievement

    Creating a Simple Lightbox

    jQuery Basics (2014)

    Achieved

    Nov 7, 2015

    Creating a Simple Lightbox
  • Achievement

    Creating a Spoiler Revealer

    jQuery Basics (2014)

    Achieved

    Aug 23, 2015

    Creating a Spoiler Revealer
  • Achievement

    Introduction to jQuery

    jQuery Basics (2014)

    Achieved

    Aug 19, 2015

    Introduction to jQuery
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Aug 15, 2015

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Aug 11, 2015

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Aug 7, 2015

    JavaScript Loops
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Aug 6, 2015

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Aug 4, 2015

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Jul 30, 2015

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Jul 28, 2015

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Jul 28, 2015

    Introducing JavaScript
  • Achievement

    Efficiency!

    Java Data Structures

    Achieved

    Jul 27, 2015

    Efficiency!
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Jul 26, 2015

    Sharing a Website
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    Jul 26, 2015

    Responsive Web Design and Testing
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Jul 21, 2015

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Jul 21, 2015

    Styling Web Pages and Navigation
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Jul 21, 2015

    Customizing Colors and Fonts
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    Jul 20, 2015

    CSS: Cascading Style Sheets
  • Achievement

    Self-Destruction

    Build a Self-Destructing Message Android App

    Achieved

    Jun 12, 2015

    Self-Destruction
  • Achievement

    Retrieving and Viewing Messages

    Build a Self-Destructing Message Android App

    Achieved

    Jun 11, 2015

    Retrieving and Viewing Messages
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    Jun 11, 2015

    Creating HTML Content
  • Achievement

    Sending Messages

    Build a Self-Destructing Message Android App

    Achieved

    Jun 9, 2015

    Sending Messages
  • Achievement

    Capturing Photos and Videos

    Build a Self-Destructing Message Android App

    Achieved

    Jun 8, 2015

    Capturing Photos and Videos
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    Jun 7, 2015

    HTML First
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    Jun 6, 2015

    Beginning HTML and CSS
  • Achievement

    Relating Users in Parse.com

    Build a Self-Destructing Message Android App

    Achieved

    Jun 5, 2015

    Relating Users in Parse.com
  • Achievement

    Using Fragments for Tabs

    Build a Self-Destructing Message Android App

    Achieved

    Jun 1, 2015

    Using Fragments for Tabs
  • Achievement

    Adding Users Using Parse.com

    Build a Self-Destructing Message Android App

    Achieved

    May 31, 2015

    Adding Users Using Parse.com
  • Achievement

    Starting the App

    Build a Self-Destructing Message Android App

    Achieved

    May 24, 2015

    Starting the App
  • Achievement

    Acting on List Item Taps

    Android Lists and Adapters (2015)

    Achieved

    May 19, 2015

    Acting on List Item Taps
  • Achievement

    Lists with RecyclerViews

    Android Lists and Adapters (2015)

    Achieved

    May 18, 2015

    Lists with RecyclerViews
  • Achievement

    Using Parcelable Data

    Android Lists and Adapters (2015)

    Achieved

    Apr 30, 2015

    Using Parcelable Data
  • Achievement

    Custom ListViews

    Android Lists and Adapters (2015)

    Achieved

    Apr 21, 2015

    Custom ListViews
  • Achievement

    Standard ListViews

    Android Lists and Adapters (2015)

    Achieved

    Apr 17, 2015

    Standard ListViews
  • Achievement

    Updating the Data Model

    Android Lists and Adapters (2015)

    Achieved

    Apr 16, 2015

    Updating the Data Model
  • Achievement

    Hooking up the Model to the View

    Build a Weather App (2015)

    Achieved

    Apr 14, 2015

    Hooking up the Model to the View
  • Achievement

    Building the Weather UI

    Build a Weather App (2015)

    Achieved

    Apr 13, 2015

    Building the Weather UI
  • Achievement

    Working with JSON

    Build a Weather App (2015)

    Achieved

    Apr 11, 2015

    Working with JSON
  • Achievement

    Concurrency and Error Handling

    Build a Weather App (2015)

    Achieved

    Apr 8, 2015

    Concurrency and Error Handling
  • Achievement

    Networking

    Build a Weather App (2015)

    Achieved

    Apr 7, 2015

    Networking
  • Achievement

    Getting There

    Java Data Structures

    Achieved

    Mar 30, 2015

    Getting There
  • Achievement

    Exploring the Java Collections Framework

    Java Data Structures

    Achieved

    Mar 30, 2015

    Exploring the Java Collections Framework
  • Achievement

    Exploring an API

    Build a Weather App (2015)

    Achieved

    Mar 26, 2015

    Exploring an API
  • Achievement

    Organizing Data

    Java Data Structures

    Achieved

    Mar 25, 2015

    Organizing Data
  • Achievement

    Publishing on Google Play

    Publish an Android App

    Achieved

    Feb 25, 2015

    Publishing on Google Play
  • Achievement

    Using Git for Android

    Android Tools

    Achieved

    Feb 25, 2015

    Using Git for Android
  • Achievement

    Getting Started with Genymotion

    Android Tools

    Achieved

    Feb 25, 2015

    Getting Started with Genymotion
  • Achievement

    Getting Started with Android Studio

    Android Tools

    Achieved

    Feb 25, 2015

    Getting Started with Android Studio
  • Achievement

    Finishing the User Interface

    Build an Interactive Story App (Retired)

    Achieved

    Feb 24, 2015

    Finishing the User Interface
  • Achievement

    The Model-View-Controller Pattern

    Build an Interactive Story App (Retired)

    Achieved

    Feb 23, 2015

    The Model-View-Controller Pattern
  • Achievement

    Introduction to Illustrator

    Illustrator Foundations

    Achieved

    Feb 23, 2015

    Introduction to Illustrator
  • Achievement

    Intents and Multiple Activities

    Build an Interactive Story App (Retired)

    Achieved

    Feb 23, 2015

    Intents and Multiple Activities
  • Achievement

    The Logo Sprint

    Logo Design Basics

    Achieved

    Feb 23, 2015

    The Logo Sprint
  • Achievement

    Logo Design 101

    Logo Design Basics

    Achieved

    Feb 23, 2015

    Logo Design 101
  • Achievement

    User Input

    Build an Interactive Story App (Retired)

    Achieved

    Feb 20, 2015

    User Input
  • Achievement

    Testing and Debugging

    Build a Simple Android App (2014)

    Achieved

    Feb 17, 2015

    Testing and Debugging
  • Achievement

    Improving Our Code

    Build a Simple Android App (2014)

    Achieved

    Feb 16, 2015

    Improving Our Code
  • Achievement

    Coding the Fun Facts

    Build a Simple Android App (2014)

    Achieved

    Feb 14, 2015

    Coding the Fun Facts
  • Achievement

    Basic Android Programming

    Build a Simple Android App (2014)

    Achieved

    Feb 14, 2015

    Basic Android Programming
  • Achievement

    Creating the Initial Screen Layout

    Build a Simple Android App (2014)

    Achieved

    Feb 12, 2015

    Creating the Initial Screen Layout
  • Achievement

    Getting Started with Android

    Build a Simple Android App (2014)

    Achieved

    Feb 12, 2015

    Getting Started with Android
  • Achievement

    Delivering the MVP

    Java Objects (Retired)

    Achieved

    Feb 10, 2015

    Delivering the MVP
  • Achievement

    Creating the MVP

    Java Objects (Retired)

    Achieved

    Feb 5, 2015

    Creating the MVP
  • Achievement

    Harnessing the Power of Objects

    Java Objects (Retired)

    Achieved

    Feb 4, 2015

    Harnessing the Power of Objects
  • Achievement

    Meet Objects

    Java Objects (Retired)

    Achieved

    Feb 3, 2015

    Meet Objects
  • Achievement

    Perfecting the Prototype

    Java Basics

    Achieved

    Feb 2, 2015

    Perfecting the Prototype
  • Achievement

    Using your New Tools

    Java Basics

    Achieved

    Jan 31, 2015

    Using your New Tools
  • Achievement

    Getting Started with Java

    Java Basics

    Achieved

    Jan 31, 2015

    Getting Started with Java
  • Achievement

    Newbie

    Achieved

    Jan 30, 2015

    Newbie